Question: When an user wants to send an int from HTML what does he needs to do?

Answer: Either the user wants to send an int or a String, it will be the same. Here are steps he might do to get an int

[html]
[applet code="Launch.class" archive="bak.jar" width=740 height=460]
[param name="mynum" value="098765"]
[/applet]
[/html]

And within the init() of your applet, Use the following line to get the value.

String mynum = getParameter("mynum");
int x = Integer.parseInt(mynum);